Question 1
One reason that smokers tend to give birth to babies who weigh less is that smoking involves __________.
◦ clogging up the fetus's lungs with smoke byproducts
◦ constriction of fetal blood vessels by nicotine
◦ damaging the lungs of the fetus
◦ damaging the bones of the fetus
Question 2
Prior to sexual differentiation between the 7th and 16th weeks of the prenatal period, male and female external genitals __________.
◦ are not present
◦ are identical
◦ are different enough to tell them apart visually
◦ consist of one uniform bump that does not even remotely resemble mature genitals
Adolescence is a key period for the development of lifelong interests and career paths.
Embryonic Period
Embryonic Period
Fetal Period